fix bug

src/call.py

@@ -54,7 +54,7 @@ class Call(Executor):
             if(para.get_type()=="Call"):
                 tab = para.get_elements_called(tab_input = tab.copy(), first_call = False)
             elif(para.get_type()=="Operation"):
-                tab += para.get_elements_called(tab = tab.copy())
+                tab = para.get_elements_called(tab = tab.copy())
 
         temp = list(set(tab))
         #del tab

src/workflow.py

@@ -19,7 +19,7 @@ class Workflow:
                  license = None, creativeWorkStatus = None, authors = None, 
                  version = None, keywords = None, producer = None,
                  publisher = None, processes_2_remove = None):
-        print("here")
+
         if(not os.path.isfile(file)):
             nextflow_files = glob.glob(f'{file}/*.nf')
             if(len(nextflow_files)==0):